Ranking of queries is done by which of the following?

Related MCQs

• Which of the following queries are legal?
• Which of the following queries displays the sum of all employee salaries for those employees not making commission, for each job, including only those sums greater than 2500?
• Which, if any, of the two queries above will correctly (in SQL2) get the desired set of employee ID’s?
• The                operator takes the results of two queries and returns only rows that appear in both result sets.
•                                provides option for entering SQL queries as execution time, rather than at the development stage.
• After conversion of high level queries into low level commands for file access and is called compiled_____:
• In case of any shut down during transaction before commit which of the following statement is done automatically?
• The RAID level which mirroring is done along with stripping is
• Each modification done in database transaction are first recorded into the
• If a node is locked in an intention mode, explicit locking is done at a lower level of the tree. This is called